The Tor Browser / file comparison
comparison: addon-sdk/source/lib/sdk/content/utils.js
addon-sdk/source/lib/sdk/content/utils.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:89c90613a2b5 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 'use strict'; | |
| 5 | |
| 6 module.metadata = { | |
| 7 'stability': 'unstable' | |
| 8 }; | |
| 9 | |
| 10 let { merge } = require('../util/object'); | |
| 11 let assetsURI = require('../self').data.url(); | |
| 12 let isArray = Array.isArray; | |
| 13 let method = require('../../method/core'); | |
| 14 | |
| 15 function isAddonContent({ contentURL }) { | |
| 16 return typeof(contentURL) === 'string' && contentURL.indexOf(assetsURI) === 0; | |
| 17 } | |
| 18 exports.isAddonContent = isAddonContent; | |
| 19 | |
| 20 function hasContentScript({ contentScript, contentScriptFile }) { | |
| 21 return (isArray(contentScript) ? contentScript.length > 0 : | |
| 22 !!contentScript) || | |
| 23 (isArray(contentScriptFile) ? contentScriptFile.length > 0 : | |
| 24 !!contentScriptFile); | |
| 25 } | |
| 26 exports.hasContentScript = hasContentScript; | |
| 27 | |
| 28 function requiresAddonGlobal(model) { | |
| 29 return model.injectInDocument || (isAddonContent(model) && !hasContentScript(model)); | |
| 30 } | |
| 31 exports.requiresAddonGlobal = requiresAddonGlobal; | |
| 32 | |
| 33 function getAttachEventType(model) { | |
| 34 if (!model) return null; | |
| 35 let when = model.contentScriptWhen; | |
| 36 return requiresAddonGlobal(model) ? 'document-element-inserted' : | |
| 37 when === 'start' ? 'document-element-inserted' : | |
| 38 when === 'ready' ? 'DOMContentLoaded' : | |
| 39 when === 'end' ? 'load' : | |
| 40 null; | |
| 41 } | |
| 42 exports.getAttachEventType = getAttachEventType; | |
| 43 | |
| 44 let attach = method('worker-attach'); | |
| 45 exports.attach = attach; | |
| 46 | |
| 47 let detach = method('worker-detach'); | |
| 48 exports.detach = detach; | |
| 49 | |
| 50 let destroy = method('worker-destroy'); | |
| 51 exports.destroy = destroy; | |
| 52 | |
| 53 function WorkerHost (workerFor) { | |
| 54 // Define worker properties that just proxy to underlying worker | |
| 55 return ['postMessage', 'port', 'url', 'tab'].reduce(function(proto, name) { | |
| 56 // Use descriptor properties instead so we can call | |
| 57 // the worker function in the context of the worker so we | |
| 58 // don't have to create new functions with `fn.bind(worker)` | |
| 59 let descriptorProp = { | |
| 60 value: function (...args) { | |
| 61 let worker = workerFor(this); | |
| 62 return worker[name].apply(worker, args); | |
| 63 } | |
| 64 }; | |
| 65 | |
| 66 let accessorProp = { | |
| 67 get: function () { return workerFor(this)[name]; }, | |
| 68 set: function (value) { workerFor(this)[name] = value; } | |
| 69 }; | |
| 70 | |
| 71 Object.defineProperty(proto, name, merge({ | |
| 72 enumerable: true, | |
| 73 configurable: false, | |
| 74 }, isDescriptor(name) ? descriptorProp : accessorProp)); | |
| 75 return proto; | |
| 76 }, {}); | |
| 77 | |
| 78 function isDescriptor (prop) { | |
| 79 return ~['postMessage'].indexOf(prop); | |
| 80 } | |
| 81 } | |
| 82 exports.WorkerHost = WorkerHost; |
